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ABRAHAM-W. HARRIS, OF PROVIDENCE, RHODE ISLAND. l

Letters Patent No. 92,307, dated July 6, 1869.'

IMPROVED LUBRICATOR.

The Schedule referred to in these Letter-'vs Patent and making part ofthe saine.

To all whom 'it may concern:

Be it known that I` ABRAHAM W. HARRIS, of the city and county ofProvidence, in the State of Rhode Island, have invented a new and usefulImprovement of delivering the oil or lubricating-fluid to the bearing;

tobe oiled, throngh a graduated opening between two metallic surfaces.

The improvement resides in the meansby which the regulating-valve issecured, after the size of the opening has been determined, so as toprevent its subsequent displacement by the `jarring of the machine towhich the cup is attached. v

A is a cup of suitable form, which may be furnished or not with a cap,B;

C is the duct for delivering the oil to the bearing; and v 1 l) is theregulating-valve.

Ihe valve D is formed by a shoulder, a, upon the valve-stein, the faceof which isgrooved to t the edge of the raised annular seat l1, and whensuch shoulder is brought to the seat, the ilow of oil will be cut oi.

Ihe plug c, or that portion of the stem below the valve, which entersthe mouth of the delivery-duct, is made, by preference, in the form of aprism ci' three sides, the oil-passages being formed between theinterior cylindrical surface of the ductand the several planesconstituting the faces of the prism.

The advantage of thus constructing the plug is, that its sharp angles,when the valve1 is turned, will act as Scrapers to remove the sediment,whichbecomes encrusted upon the surface of the duct.

The top of the' valve-stem is furnished with anannulardisk, E, attachedto the valve-stein by the central cross-tongue d.

lhe edge of thedisk is provided with a screw-thread,

f, which lits a corresponding thread, cut for a short distance in theinterior surface of the cup.

The annular disk E is severed, as seen at g, and a tapering screw-plug,lt, .is fitted to a threaded hole, h', fi g. 3, made through the disk,and divided by the crossslit g.

- It is obvious that the effect of turning the screw-` plug lt will beto spring apart the rim`,'aud cause its screw-threaded edge tobindagainst the threads of the female screw in the side of the cup, andthereby clamp the valve D securely in any position in which it may havebeen adjusted with reference toits seat b.

It is not necessary thata tapering screw-plug should be employed tospread apart the annular disk-rim E,

attached to the valve-stem. Any equivalent device, or structure of.parts, which will enable the disk to be expanded, and thereby hold thevalve in any determined position, will accomplish the result.

I wish it to be understood, that I do not claim,

broadly, a method of regulating the flow of oil from v an oil-cup, bymeans of an adjustable plug to vary the size of the discharge-orifice;but

What I claim as my invention, and desire to secure by Letters Patent,is-

l. Constructing the stem of the regulating-valve D, of an oil-cup A,with au expansible disk-rim head, E, substantially as described, for thepurposes speciietl.

2. rIhe combination of the oil-cup A, regulatingvalve I), expausible rimE, andtapering plug lt, or equivalent device, substantially asdescribed. v

ABRAHAM W. HARRIS.

Witnesses:

It. II. PERRY, Giras. W. Gaurain.

